5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


TESTING OF BUCKLING - RESTRAINED BRACES WITH REPLACEABLE FUSES

 

H.T. Hou 1*, M.J. Li 1, X.X. Yan 1, C.X. Qiu1, X.F. Liu 1, B. Qu 2

1 School of Civil Engineering, Shandong University, Jinan, Shandong Province, China

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2 Department of civil Environmental Engineering, California Polytechnic State University, CA San Luis Obispo, the United States

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DOI:10.18057/ICASS2018.P.051

ABSTRACT:

This research was focused on a new type of Buckling-Restrained Braces (BRBs) with replaceable steel angle fuses. The proposed BRB is composed of the inner telescopic Buckling-Restraining Mechanism (BRM), the buckling-restrained angle fuses and the outer BRM. The proposed BRB offers the ease of post-earthquake examination on fuse damages, the convenient and prompt replacement of damaged fuses and the re-use of the buckling restraining elements. To investigate seismic behavior of the proposed BRB, four brace specimens were tested. The test parameters varied in these specimens included fuse design, debonding material, and loading protocol. Test results show that the proposed BRB can exhibit stable hysteretic behavior up to fairly high fuse strain levels. Failure modes of the specimens were found to be ruptures of the angle fuses as expected. The compression strength adjustment factors and the cumulative plastic deformations of the specimens were found to satisfy the requirements specified by AISC 341-16. Moreover, the authors demonstrated that the specimens repaired through fuse replacements remained satisfactory in the following tests.

Keywords:

Cyclic test; Replaceable structural fuse; Buckling-restrained brace; Energy dissipation

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM